<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>商品管理</el-breadcrumb-item>
      <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>
    <el-card>
      <el-row :gutter="20">
        <el-col :span="7">
          <el-input
            placeholder="请输入内容"
            v-model="queryInfo.query"
            clearable
            @clear="getGoodsList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getGoodsList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="toAddGoods">添加商品</el-button>
        </el-col>
      </el-row>
      <el-table :data="goodsList" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="商品名称" prop="goods_name"></el-table-column>
        <el-table-column
          label="商品价格（元）"
          prop="goods_price"
          width="100"
        ></el-table-column>
        <el-table-column
          label="商品数量"
          prop="goods_number"
          width="80"
        ></el-table-column>
        <el-table-column
          label="商品重量（克）"
          prop="goods_weight"
          width="100"
        ></el-table-column>
        <el-table-column label="创建时间" prop="add_time" width="200">
          <template slot-scope="scope">{{ scope.row.add_time | dateFormat }}</template>
        </el-table-column>
        <el-table-column label="操作" width="180">
          <template slot-scope="scope">
            <el-button
              icon="el-icon-edit"
              type="primary"
              title="编辑"
            ></el-button>
            <el-button
              icon="el-icon-delete"
              type="danger"
              title="删除"
              @click="removeGoodsById(scope.row.goods_id)"
            ></el-button>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryInfo.pagenum"
        :page-sizes="[5, 10, 15, 20]"
        :page-size="queryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    return {
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 5
      },
      goodsList: [],
      total: 0
    }
  },
  created () {
    this.getGoodsList()
  },
  filters: {
    dateFormat (val) {
      return new Date(val).toLocaleString()
    }
  },
  methods: {
    toAddGoods () {
      this.$router.push('/goods/add')
    },
    async removeGoodsById (id) {
      this.$confirm('此操作将永久删除该商品, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      })
        .then(async () => {
          const { data: res } = await this.$http.delete('goods/' + id)
          if (res.meta.status !== 200) {
            return this.$message.error(res.meta.msg || '删除失败')
          }
          this.$message({
            type: 'success',
            message: '删除成功!'
          })
          this.getGoodsList()
        })
        .catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
    handleCurrentChange (num) {
      this.queryInfo.pagenum = num
      this.getGoodsList()
    },
    handleSizeChange (size) {
      this.queryInfo.pagesize = size
      this.getGoodsList()
    },
    async getGoodsList () {
      const { data: res } = await this.$http.get('goods', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取商品列表数据失败')
      }
      this.goodsList = res.data.goods
      this.total = res.data.total
    }
  }
}
</script>
<style scoped>
</style>
